Automatic movement, French import assay marks and Swiss assay marks for 18K yellow gold (750‰) and stainless steel, dial and buckle signed Patek Philippe, dial and case back signed IOS, circa 1970, Patek Philippe IOS fitted case Size/Dimensions: bracelet 23.0 cm (adjustable), case 36.0 mm, dial 29.0 mm Gross weight: 85.70 grams

Crafted between 1968 and 1971, the yellow gold Ref. 3565/1 was specially commissioned by Patek Philippe for Bernie Cornfeld’s Investors Overseas Service (IOS) as an exclusive corporate reward. Awarded to associates achieving over one million USD in sales, more than 1,000 pieces were produced—making it one of the largest corporate commissions in Patek Philippe’s history.